Overview
- The 2026 FIFA World Cup will concentrate millions of fans across 16 host cities, increasing the chance that respiratory and travel‑linked infections spread in airports, stadiums, bars and transit.
- The Health Security Operations Center–led surveillance network became operational on June 10 and will deliver daily wastewater, clinical and electronic reports to local health departments, the CDC and international partners.
- Public‑health experts identify measles, influenza and COVID‑19 as the most likely short‑term threats at venues, with U.S. measles cases already high this year and large crowds enabling rapid spread.
- The World Health Organization has declared a global emergency over a Bundibugyo‑strain Ebola outbreak in Central Africa, but specialists say Ebola transmission at stadiums is unlikely because it spreads by direct contact and symptomatic people are contagious.
- Officials warn that cuts to international aid and domestic public‑health staffing have reduced surge capacity, making early detection tools like wastewater PCR and sequencing crucial to buying time for isolation, vaccination and local response.